Meh. Screw the little fat bastards. They are and will continue to drain the American health care system throughout their lives. The letter is a bit excessive though. How about a stalk of celery instead.

Fatties and smokers actually consume less healthcare, since they die a buttery, phlegm-filled death much sooner than the healthy.

I agree that it is the parents fault but, seeing the note in their kids bag instead of candy SHOULD be a wake up call to them. Instead, they try to portray this woman as some kind of monster for pointing out that their little blob is too fat and should be taught healthier eating habits.

Sadly trick or treating is likely the most exercise many fat kids get all year

This. And my biggest problem is she's doing this with at least some amount of anonymity. She's giving this letter to the kids hoping the parents will see, but she didn't sign it, she didn't leave any contact info... if you're going to take that kind of stand, then be a grownup and stand behind your convictions.